Discussion in 'Homework Help' started by freebird1401, Jan 25, 2011.

1. ### freebird1401 Thread Starter New Member

Jan 25, 2011
3
0
Good Day All;
I have question from book <SNIP>. this question in three phase circuit.

The question is:
Q12.30 Given the circuit in Fig. 12.53 below, find the total complex power absorbed by the load. in the attachment

• ###### Q12.30.JPG
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Last edited by a moderator: Jan 25, 2011
2. ### bertus Administrator

Apr 5, 2008
15,805
2,389
Hello,

I get a strange arabic page in stead of the picture.
Please post the picture here localy.

Bertus

3. ### freebird1401 Thread Starter New Member

Jan 25, 2011
3
0
Good Day;

the image is very big and you should wait for a second to appear.

any way I have put it in the attachment

File size:
20.8 KB
Views:
19
4. ### Georacer Moderator

Nov 25, 2009
5,151
1,266
Since the load is balanced, can we ignore the impedance on the neutral path?

5. ### t_n_k AAC Fanatic!

Mar 6, 2009
5,448
783
Each phase sees exactly the same complex load Zph=(10+j14)Ω.

The complex power you seek is probably the total apparent power - in Volt-Ampere. See http://en.wikipedia.org/wiki/AC_power

This would be the sum of the three individual phase apparent powers.

The apparent power per phase will just be (Vphase)^2/Zph